WorksheetsEcology Exam Review (Graded)
Total questions: 40
Worksheet time: 22mins
What are the levels of ecological organization from smallest to largest?
population → ecosystem → biome → organism → community
biome → ecosystem → community → population → organism
organism → population → community → ecosystem → biome
organism → population → ecosystem → community → biome
______________ is the study of how living things interact with each other and their environment.
botany
ecology
biology
heredity
What is the source of energy for an ecosystem?
the sun
plants (producers)
decomposers
consumers
Photosynthesis takes place in...
only in plants
only in animals
in both plants and animals
Cellular respiration takes place...
only in plants
only in animals
both in plants and animals
A factor that slows or stops the growth of a population is called a(n)...
biotic factor
abiotic factor
limiting factor
2000 is the highest population the ecosystem can support for Species 5. 2000 is the...
carrying capacity
limiting factor
maximum level
biotic factor
A forest fire causes damage to its ecosystem. In addition, smoke and smog fill the atmosphere and impact nearby ecosystems. Which of the following is most likely to occur in nearby ecosystems?
all of the plants would die and then the animals would die
lack of sunlight does not impact the nearby ecosystem
lack of sunlight would impact the plants which could then impact the consumers
Owls live in trees in a forest ecosystem and eat mice and small rodents for energy. Ecologists have noticed an increase in the number of mice in the forest. Which of the following is most likely to happen to the owl population?
The owl population will decrease due to a change in food source.
The owl population will increase and stay high due to change in food source.
The owl population will not increase or decrease.
The owl population will increase due to more food, but eventually will stop due to overcrowding.
Bees get nectar from flowers and flowers are pollinated by bees. Since both species benefit, the relationship is...
competition
mutualism
commensalism
parasitism
When two organisms want the same resource in an environment and the resource is in limited supply the organisms are in...
commensalism
symbiosis
competition
parsitism
A fox hunts and eats a rabbit for energy. In this interaction, the fox is the...
predator
prey
host
parasite
Ticks are small insects that attach to deer and feed on the blood of the deer. This causes damage to the deer. What type of relationship is represented?
competition
predation
parasitism
commensalism
A remora is a small fish that attaches to the side of a shark getting transportation and food scraps. The shark is unaffected. What type of relationship exists between the two species?
competition
mutualism
commensalism
predation
Mistletoe attaches to spruces trees causing damage by taking its water and nutrients. In this relationship the mistletoe is the...
predator
prey
host
parasite
Coyotes and hawks both eat snakes in an ecosystem. Which of the following would be a way to reduce competition between the species?
mate during different seasons throughout the year
coyotes could rely more on elk as a food source
coyotes and elk choose different options for shelter
Hermit crabs use abandoned shells for shelter. This is an example of...
predation
mutualism
commensalism
parasitism
The graph shows the interaction between wolves (predators) and rabbits (prey). What happens when the population of rabbits increases?
the wolves decrease in population
the wolves increase in population
the wolf population is unaffected
The graph shows interaction between a bear and a fish. What type of relationship exists between the two species?
mutualism
commensalism
parasitism
predation
A diagram showing the flow of energy in an ecosystem as seen in the image is a...
food chain
food web
energy pyramid
In the food web shown, energy is transferred from the _________ to the ________.
coral; zooplankton
parrotfish; shark
shark; unicornfish
parrotfish; coral
Look at the food web. Which population would be impacted the most if the fox population were removed?
rabbits
grasses
snake
birds
What is an invasive species?
a top predator that controls the population of prey
a non-native species that harms the ecosystem
an organism that lives on a host species causing harm or discomfort
a species whose population can indicate if the ecosystem is healthy
Does Food Web A (on the left) or Food Web B (on the right) have more biodiversity?
Food Web A
Food Web B
Both have equal biodiversity
Does Food Web A (on the left) or Food Web B (on the right) would have more stability?
Food Web A
Food Web B
Both have equal biodiversity
Sharks are apex predators that help keep the ocean healthy. They prey on species that could harm the coral reefs if the species overpopulated. Sharks also prevent disease from spreading because they prey on weak and sick animals, preventing them from passing on disease. Which of the following would happen if sharks were removed from an ecosystem?
There would be an decrease in species that harm the coral reefs
Weak and ill animals would take over the ecosystem
There would be many effects on the ecosystem including coral reef damage and increase in disease
Pollution causes damage to ecosystems and almost always decreases biodiversity. Which of the following would be the best solution to keeping ecosystems healthy and biodiverse?
Fill in polluted waterways and dig new ones that are polluted
Take animals from polluted areas and relocate them to clean areas
Require all government buildings to be powered by clean energy
Organize and promote clean up efforts to remove pollutants from the ecosystem
Which of the following are biotic factors shown in the picture.
Sea Stars
Fish
Ocean Acidification
Grass
Which of the following are abiotic factors shown in the picture.
Sand
Water
Clouds
Sunlight
a frog
organism
population
community
ecosystem
frogs, plants, worms
organism
population
community
ecosystem
frogs
organism
population
community
ecosystem
Frogs, lily pad, water, wind, rocks, flowers
organism
population
community
ecosystem
Areas with similar climate and plants...
Population
Community
Ecosystem
Biome
Which of the following is a producer in the food web?
trees
grasshopper
frog
deer
Which of the following are secondary consumers in the food web?
deer
frog
snake
eagle
Which of the following is a tertiary consumer in the food web?
deer
frog
snake
eagle
The eagle is a(n)...
producer
primary consumer
secondary consumer
tertiary consumer
Which of the following is evidence to support barnacles and whales have a commensalism relationship?
Barnacles benefit from getting shelter from the whale.
The whale is not helped or harmed by the barnacle.
Whales and barnacles have a close, long-term relationship.
Barnacles benefit from traveling by way of the whale.
Which of the following can be used as evidence that bees and flowers have a mutualist relationship.
Bees have wings and can fly.
Flowers benefit from bees because through pollination.
Bees benefit from flowers by getting nectar for food.
Bright colors on flower petals can be used to attract pollinators.
